Visualizing Drawing in Perspective by Will Terry
https://courses.svslearn.com/courses/visualizing-drawing-in-perspective
  In this tutorial you will be given the steps to draw various common objects from different angles from your imagination. Rather than learning to draw from observation - visualizing is a powerful skill that will fill in the gaps when you can't find the perfect reference photos to work from

Some of what you will learn:
Drawing from the shoulder instead of the wrist and fingers.
Fast lines vs slow lines.
All objects begin from 3-4 simple shapes.
Drawing in perspective - rules review.
Finding the center line on all objects to give reference points for details.
Visualizing an object before drawing it.
Applying visualization skills to your own illustration work.